TIMEOUT - WRITE_DMA errors in security output
Sopov Alexey
adler at smtp.ru
Fri Aug 27 07:21:55 PDT 2004
Backup your data imediatly!
I think your ad4 dies...
LL> Hey all. I'm seeing some things I'm not comfortable with in the
LL> security output from one of my systems - a new Dell Dimension 8300.
LL> This is what I'm seeing:
LL> key2.keyslapper.org kernel log messages:
>> ad4: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=31672255
>> ad4: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=31672383
LL> The ad4 timeouts have happened before. They usually coincide with a
LL> moderate to large port build. If I'm building some huge package like
LL> OpenOffice or xorg when this happens, the whole system hangs. No
LL> mouse, keyboard, nothing. Last time I just left it to see if things
LL> resolved, and next morning I found it freshly rebooted. (I did
LL> eventually get both OpenOffice and xorg built though)
LL> Ad4 is a 160G hard drive with the following partitioning:
LL> $ df -k
LL> Filesystem 1K-blocks Used Avail Capacity Mounted on
LL> /dev/ad4s1a 1012974 57462 874476 6% /
LL> devfs 1 1 0 100% /dev
LL> /dev/ad4s1h 57896520 4 53264796 0% /export
LL> /dev/ad4s1g 60931274 2371112 53685662 4% /home
LL> /dev/ad4s1e 1012974 7882 924056 1% /tmp
LL> /dev/ad4s1f 20308398 4000050 14683678 21% /usr
LL> /dev/ad4s1d 8122126 85068 7387288 1% /var
LL> fdisk output is:
LL> # fdisk
LL> ******* Working on device /dev/ad4 *******
LL> parameters extracted from in-core disklabel are:
LL> cylinders=310019 heads=16 sectors/track=63 (1008 blks/cyl)
LL> Figures below won't work with BIOS for partitions not in cyl 1
LL> parameters to be used for BIOS calculations are:
LL> cylinders=310019 heads=16 sectors/track=63 (1008 blks/cyl)
LL> Media sector size is 512
LL> Warning: BIOS sector numbering starts with sector 1
LL> Information from DOS bootblock is:
LL> The data for partition 1 is:
LL> sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
LL> start 63, size 312496317 (152586 Meg), flag 80 (active)
LL> beg: cyl 0/ head 1/ sector 1;
LL> end: cyl 1023/ head 254/ sector 63
LL> The data for partition 2 is:
LL> <UNUSED>
LL> The data for partition 3 is:
LL> <UNUSED>
LL> The data for partition 4 is:
LL> <UNUSED>
LL> Any other info that would help, please let me know, but I'd like to
LL> know what the cause could be and how to fix it.
LL> TIA
LL> Lou
--
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